package com.atguigu.gulimall.product.service.impl;

import com.atguigu.gulimall.product.entity.SkuImagesEntity;
import com.atguigu.gulimall.product.entity.SpuInfoDescEntity;
import com.atguigu.gulimall.product.service.*;
import com.atguigu.gulimall.product.vo.SkuItemSaleAttrVo;
import com.atguigu.gulimall.product.vo.SkuItemVo;
import com.atguigu.gulimall.product.vo.SpuItemAttrGroupVo;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.math.BigDecimal;
import java.util.List;
import java.util.Map;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.ThreadPoolExecutor;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimall.product.dao.SkuInfoDao;
import com.atguigu.gulimall.product.entity.SkuInfoEntity;
import org.springframework.util.StringUtils;


@Service("skuInfoService")
public class SkuInfoServiceImpl extends ServiceImpl<SkuInfoDao, SkuInfoEntity> implements SkuInfoService {


    @Autowired
    SkuImagesService imagesService;

    @Autowired
    SpuInfoDescService spuInfoDescService;

    @Autowired
    AttrGroupService attrGroupService;

    @Autowired
    SkuSaleAttrValueService skuSaleAttrValueService;

    @Autowired
    ThreadPoolExecutor executor;

    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<SkuInfoEntity> page = this.page(
                new Query<SkuInfoEntity>().getPage(params),
                new QueryWrapper<SkuInfoEntity>()
        );

        return new PageUtils(page);
    }

    @Override
    public void saveSkuInfo(SkuInfoEntity skuInfoEntity) {
        this.baseMapper.insert(skuInfoEntity);
    }

    @Override
    public PageUtils queryPageByCondition(Map<String, Object> params) {
//        QueryWrapper<SkuInfoEntity> queryWrapper = new QueryWrapper<>();
//        /**
//         * key:
//         * catelogId: 0
//         * brandId: 0
//         * min: 0
//         * max: 0
//         */
//        String key = (String) params.get("key");
//        if(!StringUtils.isEmpty(key)){
//            queryWrapper.and((wrapper)->{
//               wrapper.eq("sku_id",key).or().like("sku_name",key);
//            });
//        }
//
//        String catelogId = (String) params.get("catelogId");
//        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
//
//            queryWrapper.eq("catalog_id",catelogId);
//        }
//
//        String brandId = (String) params.get("brandId");
//        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(catelogId)){
//            queryWrapper.eq("brand_id",brandId);
//        }
//
//        String min = (String) params.get("min");
//        if(!StringUtils.isEmpty(min)){
//            queryWrapper.ge("price",min);
//        }
//
//        String max = (String) params.get("max");
//
//        if(!StringUtils.isEmpty(max)  ){
//            try{
//                BigDecimal bigDecimal = new BigDecimal(max);
//
//                if(bigDecimal.compareTo(new BigDecimal("0"))==1){
//                    queryWrapper.le("price",max);
//                }
//            }catch (Exception e){
//
//            }
//
//        }
//
//
//        IPage<SkuInfoEntity> page = this.page(
//                new Query<SkuInfoEntity>().getPage(params),
//                queryWrapper
//        );
//
//        return new PageUtils(page);

        QueryWrapper<SkuInfoEntity> wrapper = new QueryWrapper<>();
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            wrapper.and((w)->{
               w.eq("sku_id",key).or().like("sku_name",key);
            });
        }
        String catelogId = (String) params.get("catelogId");
        if(!StringUtils.isEmpty(catelogId)&&!"0".equalsIgnoreCase(catelogId)){
            wrapper.eq("catelog_id",catelogId);
        }
        String brandId = (String) params.get("brandId");
        if(!StringUtils.isEmpty(brandId)&&!"0".equalsIgnoreCase(brandId)){
            wrapper.eq("brand_id",brandId);
        }
        String min = (String) params.get("min");
        if(!StringUtils.isEmpty(min)){
            wrapper.ge("price",min);
        }
        String max = (String) params.get("max");
        BigDecimal decimal = new BigDecimal(max);
        if(!StringUtils.isEmpty(max)&&decimal.compareTo(new BigDecimal("0"))>0){
            wrapper.le("price",max);
        }


        IPage<SkuInfoEntity> page = this.page(new Query<SkuInfoEntity>().getPage(params), wrapper);
        return new PageUtils(page);
    }

    @Override
    public List<SkuInfoEntity> getSkuBySpuId(Long spuId) {
        return this.list(new QueryWrapper<SkuInfoEntity>().eq("spu_id",spuId));
//        return null;
    }

    @Override
    public SkuItemVo item(Long skuId) throws ExecutionException, InterruptedException {
        SkuItemVo skuItemVo = new SkuItemVo();

        CompletableFuture<SkuInfoEntity> skuInfoFuture = CompletableFuture.supplyAsync(() -> {
//          1. sku基本信息  pms_sku_info
            SkuInfoEntity skuInfo = getById(skuId);
            skuItemVo.setSkuInfoEntity(skuInfo);
            return skuInfo;
        }, executor);

        CompletableFuture<Void> spuAttrFuture = skuInfoFuture.thenAcceptAsync((result) -> {
            //          3. 获取spu销售属性组
            List<SkuItemSaleAttrVo> saleAttrVo = skuSaleAttrValueService.getSalAttrBySpuId(result.getSpuId());
            skuItemVo.setSaleAttr(saleAttrVo);
        }, executor);

        CompletableFuture<Void> spuInfoFuture = skuInfoFuture.thenAcceptAsync((result) -> {
            //          4. 获取spu介绍  pms_spu_info_desc
            SpuInfoDescEntity spuDesc = spuInfoDescService.getById(result.getSkuId());
            skuItemVo.setDesc(spuDesc);
        }, executor);

        CompletableFuture<Void> spuGroupFuture = skuInfoFuture.thenAcceptAsync((result) -> {
            //          5. 获取spu规格参数信息
            
            List<SpuItemAttrGroupVo> attrGroupVos = attrGroupService.getAttrGroupWithAttrsBySpuId(result.getSpuId(), result.getCatalogId());
            skuItemVo.setGroupAttrs(attrGroupVos);
        }, executor);

//        long spuId = skuInfo.getSpuId();
//        Long catalogId = skuInfo.getCatalogId();

//          2. sku图片信息 pms_sku_images
        CompletableFuture<Void> imgFuture = CompletableFuture.runAsync(() -> {

            List<SkuImagesEntity> images = imagesService.getImagesBySkuId(skuId);
            skuItemVo.setImages(images);
        });

//        异步编排等待所有任务都完成
        CompletableFuture.allOf(skuInfoFuture,spuAttrFuture,spuInfoFuture,spuGroupFuture,imgFuture).get();

        return skuItemVo;
    }

}